| تعداد نشریات | 286 |
| تعداد نشریات سازمان | 84 |
| تعداد شماره‌ها | 2,873 |
| تعداد مقالات | 32,555 |
| تعداد مشاهده مقاله | 42,418,857 |
| تعداد دریافت فایل اصل مقاله | 19,194,462 |
بررسی مقدماتی کارایی تابع O-ring در تعیین الگوی مکانی و کنش متقابل گونه‌ها در مقیاس کوچک (مطالعه موردی: جنگلهای باینگان کرمانشاه) | ||
| تحقیقات جنگل و صنوبر ایران | ||
| مقاله 8، دوره 20، شماره 4 - شماره پیاپی 50، دی 1391، صفحه 621-608 اصل مقاله (477.96 K) | ||
| نوع مقاله: علمی- پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22092/ijfpr.2012.107471 | ||
| نویسندگان | ||
| مهسا کریمی1؛ محمدرضا پورمجیدیان2؛ حمید جلیل‌وند3؛ امیر صفری* 3 | ||
| 1دانشجوی کارشناسی ارشد، گروه جنگلداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری | ||
| 2دانشیار، گروه جنگلداری، دانشگاه علوم کشاورزی و منابع طبیعی ساری | ||
| 3دانش آموختۀ کارشناسی ارشد، گروه جنگلداری، دانشکده منابع طبیعی | ||
| چکیده | ||
| هدف این پژوهش بررسی مقدماتی کارایی تابع O-ring در تعیین کنش متقابل و الگوی مکانی درختان در جنگلهای زاگرس در مقیاس کوچک است. مطابق با هدف تحقیق که آزمون کارایی تابع O-ring بود عرصهای به مساحت 2 هکتار در جنگلهای باینگان انتخاب و موقعیت مکانی تمامی درختان بلوط ایرانی و بنه بهعنوان گونههای غالب در قطعه مورد بررسی با استفاده از روش فاصله تا خطوط موازی تعیین و در نهایت نقشه مکانی درختان تهیه شد. از تابع دومتغیره O-ring برای بررسی کنش متقابل و از تابع تک‌متغیره O-ring برای مطالعه الگوی مکانی قطعه مورد مطالعه در فواصل مختلف استفاده شد. نتایج این تحقیق توانایی تابع O-ring در کشف الگوی مکانی و کنش متقابل مختلط در طول فواصل مختلف را نشان داد، دلیل این تغییرات به محدودیت پراکنش بذر، رقابت بین‌گونهای، قدرت بالای زادآوری بلوط (از طریق بذر و پاجوش) و اختلاف در کیفیت رویشگاه در مقیاس کوچک نسبت داده میشود. نتایج تحقیق بیانگر تشریح مناسب الگوی مکانی و کنش متقابل بهوسیله تابع O-ring در توده مورد بررسی است که میتواند بهعنوان یک کلید راهنما در شناخت و تصمیمگیری برنامههای مدیرتی و دخالتهای جنگل‌شناسی مفید در دیگر رویشگاهها باشد. | ||
| کلیدواژه‌ها | ||
| بلوط ایرانی؛ بنه؛ روش فاصله تا خطوط موازی؛ تابع دو متغیره؛ تابع تک متغیره؛ بذر | ||
| عنوان مقاله [English] | ||
| Preleminary study for application of O-ring function in determination of small-scale spatial pattern and interaction species (Case study: Bayangan forests, Kermanshah) | ||
| نویسندگان [English] | ||
| Mahsa Karimi1؛ Mohammad Reza Pormajidian2؛ Hamid Jalilvand3؛ Amir Safari3 | ||
| 1MSc Student, Dept. of Forestry, Faculty of Natural Resources | ||
| 2Associate Pof, Dept. of Forestry, Faculty of Natural Resources, Sari Agricultural Sciences and Natural Resources University | ||
| 3MSc. Graduated, Dept. of Forestry, Faculty of Natural Resources, University of Kurdistan | ||
| چکیده [English] | ||
| Aim of this study was to investigate O- ring application function to study tree species interaction and spatial pattern in the Zagros forest. According to the aim of this study that was testing O-ring function, the size of two-hectare plot (200m×100m) in Bayangan forest was selected; and full callipering method was surveyed. Coordinates of all Manna oak (Quercus brantii lindl.) and Wild pistachio (Pistacia atlantica Desf.) trees, as two dominant species in studied plot, by distance-to-parallel lines method were determined. Finally, stem-mapped trees prepared. We used O-ring bivariate function to investigate interaction between tree species in studied plot, also O-ring univariate function was used to analyze spatial pattern in the different scales. Results showed the ability of O- ring function for determination of mixed spatial and association patterns in different distances. The proof of this spatial variety forms are seed dispersal limitation, inter-specific, high vigor germination of Q. brantii and quility diffrence small scale in plot studied. Moreover, the results showrd that the O-ring functions describe spatial pattern and interaction as well as in the diffrent scales. This method, could be useful as a key to recognize and to decision making for management programs and silviculture interventions. | ||
| کلیدواژه‌ها [English] | ||
| manna oak, wild pistachio, distance-to-parallel lines method, univariate and bivariate functions, seed | ||
| مراجع | ||
|
Akhavan, R. and Sagheb-Talebi, Kh., 2012. Application of bivariate Ripley's K- function for studying competition and spatial association of trees (Case study: intact Oriental beech stands in Kelardasht), Iranian Journal of Forest and Poplar Research, 19(4): 632-644. -Akhavan, R., Sagheb-Talebi, K., Hassani, M. and Parhizkar, P., 2010. Spatial patterns in untouched beech (Fagus orientalis Lipsky) stands over forest development stages in Kelardasht region of Iran. Iranian Journal of Forest and Poplar Research, 18(2): 322-336. -Alavi, S., Zahedi Amiri, Gh. and Marvi Mohajer, M.R., 2006. An investigation of spatial pattern in Wych Elm (Ulmus glabra) in Hyrcanian forests, Case study: Kheyroudkenar forest, Noshahr, Iran. Iranian J. Natural Res. 58(4): 793-804. -Ardakani, M., 2004. Ecology. Published by Tehran universityPublishing Office, 326p. -Assuncao, R., 1994. Testing spatial randomness by means of angles. Biometrics, 50: 531-537. -Ba¨uerle, H., and Nothdurft, A., 2011. Spatial modeling of habitat trees based on line transect sampling and point pattern. Can J For Res 41: 715–727. -Basiri, R., Sohrabi, H. and Mozayen, M., 2006. A statistical analysis of the spatial pattern of trees species in Ghamisheleh Marivan region, Iran. Journal of the Iranian Natural Res. 59(2): 579-588. -Chao, W. C., Wu, Sh. H., Lin, H. Y., Hsieh, C. F. and Chao, K. J., 2007. Distribution Patterns of Trees Species in the Lanjenchi Lowland Rain Forest. Taiwania, 52(4): 343-351. -Erfanifard, Y., Feghhi, J., Zobeiri, M. and Namiranian, M., 2008. Investigation on the spatial pattern of trees in Zagros forests. Journal of the Iranian Natural Res. 60(4): 1318-1328. -Erfanifard Y., Feghhi J., Zobeiri M. and Namiranian, M., 2009. Spatial pattern analysis in Persian oak (Quercus brantii var. persica) forests on B&W aerial photographs. Environ Monit 150: 251-259. -Getzin, S., Dean, Ch., He, F., Trofymow, J. A., Wiegand, K. and Wiegand, T., 2006. Spatial patterns and competition of tree species in a douglas-fir cjoronosequence on Vancouver Island. Ecography, 29: 671-682. -Gray, L. and He, F.L., 2009. Spatial point-pattern analysis for detecting density-dependent competition in a boreal chronosequence of Alberta. Forest Ecology and Management, 259: 98–106. -Habashi. H., Hosseini, S.M., Mohammadi, J. and Rahmani, R., 2007. Stand structure and spatial pattern of trees in mixed Hyrcanian Beech forests of Iran. Iranian Journal of Forest and Poplar Research, 55-64. -Haji Mirza Aghayee, S., Jalilvand, H., Kooch, Y. and Pormajidian, M.R., 2010. Analysis of important value and spatial pattern of woody species in ecological units (case study: Sardabrood forests of Chalous). Iranian Journal of Forest. 2(1): 51-60. -Heidari, R.H., Zobeiri, M., Namiranian, M. and Sobhani, H., 2007. Application of T-square sampling method in Zagross forests. (Case Study: Kermanshah province), Iranian Journal of Forest and Poplar Research, 15(1): 32-42. -Illian, J., Penttinen, A., Stoyan, H. and Stoyan, D., 2008. Statistical Analysis and Modelling of Spatial point patterns. John & whiley Sons, 556 p. -Jacquemyn, H., Endels, P., Honnay, O. and Wiegand, T., 2010. Evaluating management interventions in small population of perennial herb Primula vulgaris using spatio-remporal analyses of point patterns. J. Applied Ecology, 47: 431-440. -Jannat Rostami, M., Zare Chahoki, M.A., Azarnivand, H. and Ebrahimi Dorcheh, Kh., 2009. Survey and analysis of spatial pattern of plant species in marginal rangelands Hoz-e-Soltan Qom. Watershed Management Researches (Pajouhesh & Sazandegi), 84: 72-80 -Jayapal, R., Qureshi, Q. and Chellam, R. 2009. Importance of forest structure versus floristics to composition of avian assemblages in tropical deciduous forests of Central Highlands, India. Forest Ecology and Management, 257(11): 2287–2295. -Krebs, C. J., 1999. Ecological Methodology. Second Edition. Addison – Welsey Educational Publisher, Inc. Benjamin/Cummings imprint. 581 p. -Luis, M.D., Raventos, J., Wiegand, T. and Hidalgo, C.H., 2008. Temporal and spatial differentiation in seedling emergence may promote species coexistence in Mediteraranean fire-prone ecosystems. Ecography, 31: 620-629. -Maestre, F. T. 2006. Linking the spatial patterns of organisms and abiotic factors to ecosystem function and management: Insights from semi-arid environments – Web Ecol. 6: 75–87. -Mantgem, P.J., Stephenson, N. L., Knapp, E., Battles, J. and Keeley J. E., 2011. Long-term effects of prescribed fire on mixed conifer forest structure in the Sierra Neveda, California. Forest Ecology and Management 261: 989-994. -Marin, A., Carrer, D.M. and Lamdica, D.S., 2011. Spatial Analysis of a mixed Beech, Sprue and Fir stand in the eastern Alps. Master thesis, Dept. Land, Enviroment, Agriculture and Forestry, College of Agricultural Sciences, University of Padua, 71 p. -Martinez, I., Weigand, T., Gonzalez, F., and Obeso, J.R., 2010. Spatial associations among tree species in a temperate forest community in North-western Spain. Forest Ecology and Management. 260: 456-465. -Mouro, S.M., García, L.V., Marañón, T. & Freitas Helena., 2007. Recruitment Patterns in a Mediterranean Oak Forest: A Case Study Showing the Importance of the Spatial Component. FOR. SCI. 53(6): 645-652. -Murrell, D.J., Purves, D.W. and Law, R., 2001. Uniting pattern and process in plant ecology. Trend Ecol. 16: 529-530. -Myster, R.W. and Malahy, M.P., 2012. Testing aggregation hypotheses among Neotropical trees and shrubs: results from a 50-ha plot over 20 years of sampling, J. Trop. Biol, 60(3): 1015-1023. -Palmino, R.L., 2005. Spatial distribution patterns of trees in a seasonally dry forest in the ceros de Amotape National Park, northwestern Peru. peru. Boil. 12(2): 317-326. -Perry, G.L.W., Enright, N.J., Miller, B.P. & Lamont, B.B., 2008. Spatial patterns in species-rich sclerophyll shrublands of southwestern Australia. Journal of Vegetation Science 19: 705-716. -Pommerening, A. and Stoyan, D., 2008. Reconstructing spatial tree points from nearest neighbor summary statistics measured in small subwindows. J. For. Res. 38: 1110-1122. -Pourbabaei, H., 2005. Statistical ecology (translation). Guilan university Publishing Office, 428p. -Reyburn, A.P., 2011. Causes and Consequences of Plant Spatial Patterns in Natural and Experimental Great Basin (USA) Plant Communities. A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Ecology, Utah State University, 162 p. -Ripley, B.D., 1977. Modeling spatial patterns. J. R. Stat. Soc., B 39 (2): 172-212. -Safari, A. , Shabanian, N., Heidari, R.H., Erfanifard, S.Y. and Pourreza, M., 2010a. Spatial pattern of Manna Oak trees (Quercus brantii Lindl.) in Bayangan forests of Kermanshah. Iranian Journal of Forest and Poplar Research, 18(4): 596-608. -Safari, A., Shabanian, N., Erfanifard, S.Y., Heidari, R.H. and Purreza, M., 2010b. Investigation of spatial pattern of wild pistachio (Pistacia atlantica Desf.) (case study: Bayangan forests, Kirmanshah). Iranian Journal of Forest, 2(2): 177-185. -Stamatellos, G. and Panourgias, G., 2005. Simulating spatial distributions of forest trees by using data from fixed area plots. Forestry, 78 (3): 305-312. -Stoyan, D. and Penttinen, A. 2000. Recent application of point process methods in forest statistics. Statist. Sci. 15: 61-78. -Trifković, S. & Yamamoto H., 2008. Indexing of spatial pattern of trees using a mean of angels. J. F. Res 13: 117-121. -Tsitsoni, T., Karamanolis, D., Stamatellos, G. and Ganatsas, P., 2003. Spatial pattern and connection of tree diameter classes in Pinus halepensis M. Stands after wildfire. 8th International conference on environmental science and technology Lemons island, Greece. -Watson, M., Roshieri, D.A. and Wiegand, T., 2007. Spatial ecology of a root parasite – from pattern to process. Austral Ecology , 32: 359–369. -Wiegand, T., 2004. Introduction to Point Pattern Analysis with Ripley’s L and the O-ring statistic using the Programita software. Department of Ecological Modelling, UFZ-Centre for Environmental Research, Leipzig, Germany. 166p. -Wiegand, T., Gunatilleke, S., Gunatilleke, N. and Okuda, T., 2007. Analysing the syructure of a Sri lankan trees Species with multiple scales of clustering. Ecology, 88(12): 3088-3102. -Wiegand, T., Moloney, K., Naves, J. and Knauer. F., 1999. Finding the missing link between landscape structure and population dynamics: a spatially explicit perspective. American Naturalist 154:605-627 -Wiegend, T. and Moloney, K. A., 2004. Rings, circles, and null-models for point pattern analysis in ecology. OIKOS, 104: 209-229. -Wong, D.W.S. and Lee, J., 2005. Statistical Analysis of Geographic Information with ArcView GIS and ArcGIS. 463 p. -Zhang, Y.T., Li, J.M., Chang, Sh.L., Li, X. and Lu, J.J., 2012. Spatial distribution pattern of Picea schrenkiana population in the Middle Tianshan Mountains and the relationship with topographic attributes,Journal of Arid Land, 4(4): 457−468 - Programita Software, © Thorsten Weigand, 2010. | ||
|
آمار تعداد مشاهده مقاله: 737 تعداد دریافت فایل اصل مقاله: 539 |
||